Hi Bruce, have checked flywheel key,all good there, a few more muscles to get flywheel nut undone wouldnt hurt though.
Hi Gadge, dont have any background info sorry, mower was half stripped when i bought it, starting with motor then on cutting deck etc.
Hi Grumpy and Gagde, have checked and reset valves, inlet was just a fraction tight, exhaust was spot on. Your coment about the B&S engine made me think of the John Deere i had the same problem with ( funny how your brain doesnt catch on till after the fact ) so I ran through same diagnosis and came up with same problem. Exhaust valve not opening slightly on compression stroke even though rocker arm is getting slightly tight but not moving valve. Is there a chance the decompression unit could be sticking or is it a case of new one needed. Will start stripping it down tomorrow and hopefully put some photos of it on for you.
Grumpy, trust me when I say I will always believe what you have to say, you have helped me out heaps and you wouldnt be doing what you do if me or anyone else thought you talked sh*t. Your like gods gift to mower mechanics everywhere.
